package com.type.strings;

/**
 * insecurity under thread by using StringBuilder 
 * 
 * NO synchronized key word
 * @author one
 *
 */
public class string2StringBuilder {

	public static void main(String[] args){
		StringBuilder sb=new StringBuilder();
		sb.append("[").append("StringBuilder");
		sb.insert(sb.length(), "]");
		System.out.println(sb);
	}
}
